/*
 * Copyright 2000-2017 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.intellij.codeInsight.intention;

import org.jetbrains.annotations.NotNull;

public interface IntentionActionDelegate {
  @NotNull
  IntentionAction getDelegate();

  @NotNull
  static IntentionAction unwrap(@NotNull IntentionAction action) {
    return action instanceof IntentionActionDelegate ? unwrap(((IntentionActionDelegate)action).getDelegate()) : action;
  }

  // optimization method: it's not necessary to build extension delegate to know its class
  @NotNull
  default String getImplementationClassName() {
    return unwrap(getDelegate()).getClass().getName();
  }
}
